Blast-furnace-charging apparatus.



PATENTED :LUNE 18 C. H. SAMPLE. BLAST FURNACB CHARGINGAPPARATUS.

APPLICATION FILED AUG. 10.19136.

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CHARLES H. SAMPLE, OF HOMESTEAD, PENNSYLVANIA, ASSIGNOR TO WALTERKENNEDY, OF BELLEVUE, PENNSYLVANIA.

BLAST-FURNACE-CHARGING APPARATUS.

No. 857,259.v

Specification of Letters Patent.

Patented June 18, 1907.

Application tied August 10,1906. serai No. 330.019.

To all whom, it may concern):

Be it known that I, CHARLES H. SAMPLE, residing at Homestead, in thecounty of Allegheny and St'ate of Pennsylvania, a citizen of the UnitedStates, have invented or discovered certain new and useful Improvementsin Blast-Furnace-Oharging Apparatus, of which improvements the followingis a specification. A

The invention described herein relates to certain improvements incharging apparatus for blast furnaces and has for its object aconstruction whereby the material to be charged into the furnace isprevented from separation in accordance with the size of the lumps orpieces of ore, etc., and whereby the charges of such segregated'material may be deposited at different points around the furnace. Y

The invention is hereinafter more fully describedand claimed.

In the accompanying drawings forming a part of this specification,Figure 1 is a view partly in elevation and partly in section .showing myimprovement applied thereto.

Fig. 2 is a top plan view of the distributer; Fig. 3 is a side elevationof the same and Fig. 4 is a sectional view, the plane of section beingindicated by the line IV-IV Fig. 2.

In ,the practice of my invention the furnace is provided with the usualor any suitable construction of main hopper 1 and bell 2, the latterbeing adapted to be lowered and raised by any suitable means as thefluid pressure cylinder 3 having its piston rod connected by the rod 4and lever 5 to the bell rod 6. A supplemental hopper 7 having a bell 8is arranged above the main hopper and preferabl supported thereby. Thebell 8 is secure to a sleeve 9surrounding the bell rod 6 and connectedfor raising and lowering the bell 8, to the piston of a fluid pressurecylinder 10 by a lever 1 1 and rod12.

The distributer consisting of a cylindrical shell 13, provided with aplate or shelf 14 extending from a portion of the edge of the shellacross the same for a distance preferably a little more than'half theradius of the shell, is rotatably mounted on the supplemental hopper.While the drum can be mounted on the supplemental hopper in any suitablemanner, it is preferred to form the hopper and shell with flanges 15 and16 on adjacent ends and to interpose balls or rollers as 15 is providedwith a rib 18 extending into a groove in the other flange, to preventlateral displacement of the shell. While the shellcan be rotated by anysuitable means, it

is preferred to construct the flange 16 with'` teeth for engagement withthe pinion 19 on the shaft 20. 'lhis shaft and the shell 13 ispreferably rotated by the piston of the cylinder 10. Said piston may beconnected t0 a rope 21 which passes around a guide pulley 22- and isoperatively connected to a drum 23 loosely mounted on the shaft 20. Apawl 24 is pivotally mounted onthe drum 23 so as to` engage a toothedwheel 25 keyed to the shaft 20. z3By the movement of the piston to closethe bell 8, the drum 23 will be rotated t0 cause a shifting of thedistributer 13, During the opposite movement of the piston a reversemovement of the drinn 23 on the shaft 20 is effected by the Weight 26.

The material to be charged into the furnace is hoisted to the top of thefurnace by a skip 27, from which the material is discharged into thechute 28, constructed and arranged to direct the material into thedistributer preferably around the axis of the latter. The distributer ispreferably so constructed as to facilitate its removal and the placingin position of a new distributer. This can be conveniently effected byforming the shell 13 with a removable section permitting the horizontalshifting of the shell transverse of the bell rod. The plate or shelf,which is arranged at an angle to the axis of the shell and the directionof movement of the material being charged, is preferably formed integralwith the shell. While the removable section of the shell can be locatedat any desired, point around the peri hery of the shell, it is preferredthat it shou d include a portion of the inclined plate or shelf. Asshown in Figs. 2, 3 and 4, the removable section 29 forms the widestportion of the shelf, the edges of which adjacent to the slot for thereception of the section 29 are braced by radial ribs 30, to vwhichflanges 31 on the removable section are bolted. This removable sectionalso includes a portion of the toothed flange 16, so that after thesection has been removed and the shell is turned to bring the slot o1'notch line with the pinion 19, the shell can be raised and movedlaterally from between the chute 28 and the hopper 7 and a new oneinserted. If for any reason it should be de- 5 5 17 between suchflanges. One of the flanges sired to charge the furnace without thedisno -www ...,v. ,.J-....mf........-n,

tributer, a cylindrical shell Without the inclined plate can be securedto the hopper 7.

In orderto enable operators to keep track of the distribution of thecharges in the furnace, a dial or other indicator on the charging Hooris operated through suitable means byv the shaft 20.' In theconstruction shown, this shaft is provided With an extension 32 having adriving connection through gearing 33 to a shaft 34, which extends downto the char ing floor to operate the indicator.

I dlaim herein as my invention:

l. A blast furnace charging apparatus havin lr in combination a mainhopper and bell, a bell at .the u per end of the main hopper, a movableshel above and movable around the axis of the upper bell and providedWith an eccentric discharge opening, and means for shifting said shell.n

2. A blast furnace charging apparatus having in combination a mainhopper and bell, means controlling the flow of material into the mainhopper, a shell movable around the axis of the main bell and providedwith an eccentric discharge opening and means for shifting said shell.

3. A blast furnace charging apparatus having in combination a mainhopper and bell, means controlling the flow of material into the mainhopper, a shell movable around the axis ofthe main bell and providedWith an -inclined plate extending part Way across the shell and meansfor shifting the shell.

4. A blast furnace charging apparatus having in combination a mainhopper and bell, a supplemental hopper and bell, a shell movablysupported by the supplemental hopper and having an eccentric dischargeopening and means for shifting said shell.

5. A blast furnace charging apparatus having in combination a mainhopper and bell, a shell movably supported above the main bell andprovided with a plate extending at an angle partially across the shell,and having a removable section including a portion of said late.. p Intestimony whereof, I have hereunto set my hand.

CHARLES H. SAMPLE. l Witnesses:

ALICE A. TRILL, J. HERBERT BRADLEY.

